cluster/dht: Add migration checks to dht_(f)xattrop

The dht_(f)xattrop implementation did not implement
migration phase1/phase2 checks which could cause issues
with rebalance on sharded volumes.
This does not solve the issue where fops may reach the target
out of order.

> Change-Id: I2416fc35115e60659e35b4b717fd51f20746586c
> BUG: 1471031
> Signed-off-by: N Balachandran <nbalacha@redhat.com>

Change-Id: I2416fc35115e60659e35b4b717fd51f20746586c
BUG: 1540224
Signed-off-by: N Balachandran <nbalacha@redhat.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index f97c90bf930..9012e518afe 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -150,6 +150,38 @@ out:
         return ret;
 }
 
+
+int32_t
+posix_set_mode_in_dict (dict_t *in_dict, dict_t *out_dict,
+                        struct iatt *in_stbuf)
+{
+        int ret             = -1;
+        mode_t mode         = 0;
+
+        if ((!in_dict) || (!in_stbuf) || (!out_dict)) {
+                goto out;
+        }
+
+        /* We need this only for files */
+        if (!(IA_ISREG (in_stbuf->ia_type))) {
+                ret = 0;
+                goto out;
+        }
+
+        /* Nobody asked for this */
+        if (!dict_get (in_dict, DHT_MODE_IN_XDATA_KEY)) {
+                ret = 0;
+                goto out;
+        }
+        mode = st_mode_from_ia (in_stbuf->ia_prot, in_stbuf->ia_type);
+
+        ret = dict_set_int32 (out_dict, DHT_MODE_IN_XDATA_KEY, mode);
+
+out:
+        return ret;
+}
+
+
 static gf_boolean_t
 posix_xattr_ignorable (char *key)
 {